MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8476a825dc9701da17a29bb46f56ae2b2bee74facc586b3357ee3627ffa83fd5. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AgentTesla


Vendor detections: 17


Intelligence 17 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8476a825dc9701da17a29bb46f56ae2b2bee74facc586b3357ee3627ffa83fd5
SHA3-384 hash: bc2849161de254303e027904aec3e5b5029bd666a72dc200c9246794f66d9ca8890bd6efa6793d7e22700115ef6ded07
SHA1 hash: 5b0c332437936f182b69c5531f115df877912a15
MD5 hash: 57aac87d931e40238c2c39b31ae2f633
humanhash: violet-chicken-may-beryllium
File name:mano.doc
Download: download sample
Signature AgentTesla
Create hunting rule
File size:668'007 bytes
First seen:2024-07-15 12:59:23 UTC
Last seen:2024-07-15 13:19:43 UTC
File type:Word file doc
MIME type:text/rtf
ssdeep 6144:CGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuqGuP:k
TLSH T130E4286DD34B02598F620377AB571E5142BDBA7EF38552B1302C537933DAC38A2252BE
Reporter NDA0E
Tags:AgentTesla CVE-2017-11882 doc

Intelligence

File Origin
# of uploads :
2
# of downloads :
418
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fffca1c358c5dd1e34379de0ca25401491072cb6722d4ff866126a7e0996c85c.doc
Verdict:
Malicious activity
Analysis date:
2024-07-15 12:07:19 UTC
Tags:
cve-2017-0199 exploit
Link:
https://app.any.run/tasks/60f7a7d4-9921-4ee6-9841-eb40383c37a7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

MiscreantPunch.EvilRTF.CommonLure.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66951d53cadc6250d055626ewin7simulatehigh_evasion
Tags:
Execution Infostealer Network Ransomware Stealth Agent
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Launching a service
Query of malicious DNS domain
Result
Verdict:
Malicious
File Type:
Fake RTF File
Link:
https://app.docguard.net/8476a825dc9701da17a29bb46f56ae2b2bee74facc586b3357ee3627ffa83fd5/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/66951d6b8405f64fe1bbc475/reports/b225408c-d716-4b54-b996-03bf946d69b2/overview
Verdict:
Malicious
Labled as:
CVE-2018-0798
Link:
https://www.hybrid-analysis.com/sample/8476a825dc9701da17a29bb46f56ae2b2bee74facc586b3357ee3627ffa83fd5
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=c8eda23b-f6bc-4572-8c87-a70bbcd887d2
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1473548
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Document exploit detected (process start blacklist hit)
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Installs new ROOT certificates
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Equation Editor Network Connection
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Microsoft Office Child Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1473548 Sample: mano.doc Startdate: 15/07/2024 Architecture: WINDOWS Score: 100 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Antivirus detection for URL or domain 2->65 67 17 other signatures 2->67 8 WINWORD.EXE 291 18 2->8         started        11 taskeng.exe 1 2->11         started        process3 file4 49 C:\Users\user\Desktop\~$mano.doc, data 8->49 dropped 13 EQNEDT32.EXE 11 8->13         started        18 EQNEDT32.EXE 8->18         started        20 YaZVFnvHolCS.exe 11->20         started        process5 dnsIp6 59 covid19help.top 104.21.83.128, 443, 49163 CLOUDFLARENETUS United States 13->59 51 C:\Users\user\AppData\...\damiano39100.scr, PE32 13->51 dropped 53 C:\Users\user\AppData\Local\...\mano[1].scr, PE32 13->53 dropped 91 Installs new ROOT certificates 13->91 93 Office equation editor establishes network connection 13->93 95 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 13->95 22 damiano39100.scr 5 13->22         started        97 Multi AV Scanner detection for dropped file 20->97 99 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 20->99 101 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->101 103 3 other signatures 20->103 26 YaZVFnvHolCS.exe 20->26         started        29 powershell.exe 20->29         started        31 powershell.exe 20->31         started        33 schtasks.exe 20->33         started        file7 signatures8 process9 dnsIp10 45 C:\Users\user\AppData\...\YaZVFnvHolCS.exe, PE32 22->45 dropped 47 C:\Users\user\AppData\Local\Temp\tmp8B8.tmp, XML 22->47 dropped 75 Multi AV Scanner detection for dropped file 22->75 77 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 22->77 79 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 22->79 89 6 other signatures 22->89 35 damiano39100.scr 12 2 22->35         started        39 powershell.exe 4 22->39         started        41 powershell.exe 4 22->41         started        43 schtasks.exe 22->43         started        57 ip-api.com 26->57 81 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 26->81 83 Tries to steal Mail credentials (via file / registry access) 26->83 85 Tries to harvest and steal ftp login credentials 26->85 87 Tries to harvest and steal browser information (history, passwords, etc) 26->87 file11 signatures12 process13 dnsIp14 55 ip-api.com 208.95.112.1, 49164, 49165, 80 TUT-ASUS United States 35->55 69 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 35->69 71 Tries to steal Mail credentials (via file / registry access) 35->71 73 Installs new ROOT certificates 39->73 signatures15
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/8476a825dc9701da17a29bb46f56ae2b2bee74facc586b3357ee3627ffa83fd5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8476a825dc9701da17a29bb46f56ae2b2bee74facc586b3357ee3627ffa83fd5/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2024-07-15 04:44:27 UTC
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qr3kqjo4s4a5uf5cto2g6vvofmv645h2zrmgwm2x5y3cp75ih7kq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240715-p8l43averg/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
AgentTesla
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/405a5a51-4928-4ebd-a448-ec7bd28c0fed
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8476a825dc97/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8476a825dc9701da17a29bb46f56ae2b2bee74facc586b3357ee3627ffa83fd5

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
Rule name:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Word file doc fffca1c358c5dd1e34379de0ca25401491072cb6722d4ff866126a7e0996c85c

AgentTesla

Word file doc 8476a825dc9701da17a29bb46f56ae2b2bee74facc586b3357ee3627ffa83fd5

(this sample)

  
Dropped by
SHA256 fffca1c358c5dd1e34379de0ca25401491072cb6722d4ff866126a7e0996c85c
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3045049/
  
Dropped by
MD5 731c801f8262faa3ca554d7119fb3c65

Comments